20175238468

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2309}}^1\times {\mathrm{2579}}^1$

素因数の和:4921

約数の個数: 72

約数和(自身を含む): 44388590400

約数和(自身を除く): 24213351932

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 2309, 2579, 3388, 4618, 5158, 9236, 10316, 16163, 18053, 25399, 28369, 32326, 36106, 50798, 56738, 64652, 72212, 101596, 113476, 177793, 198583, 279389, 312059, 355586, 397166, 558778, 624118, 711172, 794332, 1117556, 1248236, 1955723, 2184413, 3911446, 4368826, 5954911, 7822892, 8737652, 11909822, 23819644, 41684377, 65504021, 83368754, 131008042, 166737508, 262016084, 458528147, 720544231, 917056294, 1441088462, 1834112588, 2882176924, 5043809617, 10087619234, 20175238468]

約数ペア:

[(1, 20175238468), (2, 10087619234), (4, 5043809617), (7, 2882176924), (11, 1834112588), (14, 1441088462), (22, 917056294), (28, 720544231), (44, 458528147), (77, 262016084), (121, 166737508), (154, 131008042), (242, 83368754), (308, 65504021), (484, 41684377), (847, 23819644), (1694, 11909822), (2309, 8737652), (2579, 7822892), (3388, 5954911), (4618, 4368826), (5158, 3911446), (9236, 2184413), (10316, 1955723), (16163, 1248236), (18053, 1117556), (25399, 794332), (28369, 711172), (32326, 624118), (36106, 558778), (50798, 397166), (56738, 355586), (64652, 312059), (72212, 279389), (101596, 198583), (113476, 177793)]